Improvement in thill-couplings



T. B. FARRELL & vM. D. BORST.

'IHILL-COUPLING.

No. 188,613. Patented March 20,1877.

UNITED STATES,

PATENT QFFICE.

THOMAS B. FARRELL AND MARTIN, D. BURST, OF GOBLESKILL, N. Y.

IMPROVEMENT m Specification forming part of Letters Patent No. 188.613, dated March 20, 1877; application filed January 19, 1877.

To all whomvt't may concern Be it known that we, THOMAS B. FARRELL and MARTIN D. Bpns'r, of Uobleskill, in the county of Schoharie and State of New York, have invented anew and Improved Thill- Coupling, of which the following is a specification Figure 1 is a side elevationof our improved thill-coupling, with parts broken away to show the internal construction. Fig. 2 isa top' View in section on line 0 c, Fig. 1.

Similar letters of reference indicate corresponding parts. I

Our invention consists of a fork or yoke for receiviiig the thill-irons, that fits into a socket attached to axle by means of a clip. The said fork is provided with a rubber spring, that presses against the thill-iron, and abuts upon a plate that rests against the socket. A nut is provided at the rear end of the fork, for drawing it into the socket and tightening the rubber spring.-

Referring to the drawing, A is a socket attached to the axle of the carriage by the clip B. The hole through this socket is tapering, and to it the fork O isfitted. The arms a a of the fork diverge. to receive the thill-iron .e, and are thickened and bored to receivethe bolt d, that retains the thilliron. A th readed shank, 11, projects from the rear end of the fork G, and is provided with a nut, c, which presses upon the rear end of the socket A. l) is a plate placed between the arms of the folk 0, and resting against the front of the tween the thill-iron c and the plate D. The shanks of the clip B pass through the socket C, so that should the out 0 become .loosened the closed end of the fork will be engaged by the said shanks, and the fork will be prevented from leaving the socket.

wear or otherwise it is tightened byturning viated.

Having thus described our invention, we

claim as new and desire to secure by Letters Patent- The combination of the fork G, having diverging side arms a a, shank b, and not 0, and the piece A, provided with a tapering socket, with the clip B, plate D, rubber cushion E, and thill-head, substantially as herein 'shown and described.

" THOMAS B. FARRELL MARTIN D. BURST.

Witnesses:

AARON H. ESMAY. "D. J; SLOW."

i socket A. E is a rubber spring placed .'be-

A. and also between the. arms a of the fork When the rubber spring becomes loose from the nut'c, and all noise and rattlingare ob- 

